drop linux-firmware-raspi2 from snappy

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.408) UNRELEASED; urgency=medium
+
+  * drop linux-firmware-raspi2, it does not actually contain driver
+    firmware but bootloaders (and fails to install if its target dir
+    is missing).
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Thu, 21 Apr 2016 14:15:21 +0200
+
 livecd-rootfs (2.407) xenial; urgency=medium
 
   [ Colin Watson ]

live-build/auto/build

@@ -411,7 +411,7 @@ case $PROJECT:$SUBPROJECT in
               ;;
             armhf)
               if [ "$devarch" = "raspi2" ]; then
-                  linux_package="linux-image-raspi2 linux-firmware-raspi2"
+                  linux_package="linux-image-raspi2"
               fi
               ;;
             ppc64el|s390x)